Overview
DOI | https://doi.org/10.3334/ORNLDAAC/2057 |
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Version | 1.1 |
Project | |
Published | 2022-08-29 |
Usage | 40 downloads |
Description
This dataset contains georeferenced UAVSAR Level 2 (L2) interferometric products for Delta-X flight lines acquired during the spring (2021-03-27 to 2021-04-18) and fall (2021-09-03 to 2021-09-13) deployments. This dataset provides water-level change observations throughout wetlands of the Atchafalaya and Terrebonne Basins, in Southern Louisiana, USA, within the Mississippi River Delta (MRD), and it may be used to generate time series analysis. The data were collected by Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR), a polarimetric L-band synthetic aperture radar flown on the NASA Gulfstream-III (C20) aircraft as part of the Delta-X campaign. Water surface elevations were measured on multiple flights at 30-minute intervals. Data quality was assessed by comparing water elevation estimates with data from in situ water level gauges throughout the study area. The data include interferogram phase, interferogram amplitude, unwrapped interferogram phase, and coherence products. A series of quality assurance masks of troposphere-induced phase delay regions were generated for all SAR acquisition dates using a weather feature matching algorithm. Geometry files for each flight line per field campaign with latitude, longitude, height and incidence angle information are also included. The data are provided in ENVI format.
Science Keywords
- OCEANS
- COASTAL PROCESSES
- COASTAL ELEVATION
- LAND SURFACE
- TOPOGRAPHY
- TERRAIN ELEVATION
- BIOSPHERE
- ECOSYSTEMS
- MARINE ECOSYSTEMS
- ESTUARY
- LAND SURFACE
- GEOMORPHIC LANDFORMS/PROCESSES
- COASTAL PROCESSES
- SEA LEVEL CHANGES
- TERRESTRIAL HYDROSPHERE
- SURFACE WATER
- SURFACE WATER PROCESSES/MEASUREMENTS
- INUNDATION
- LAND SURFACE
- GEOMORPHIC LANDFORMS/PROCESSES
- COASTAL LANDFORMS
- SALT MARSH
Data Use and Citation
This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy. See our Data Use and Citation Policy for more information.
Data Files
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Companion Files
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Dataset Companion Files
Dataset has 1 companion files.
- DeltaX_L2_UAVSAR_WaterLevels.pdf
Additional Resources
Type | Title |
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Workshop | 2022 Delta-X Applications Workshop |
Webinar | Exploring River Deltas with NASA Data: The Delta-X Mission |
Workshop | 2024 Delta-X Applications Workshop |
Workshop | Delta-X Open Data Workshop |